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    <title>pepe</title>	

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	<h1>Caso 1 : una caja</h1>
	<img src='./one.png'/>
<pre>
OBJETO CANVAS :
	boxes = [&lt;Box instance&gt;]

OBJETO BOX (Pet) :
	lines_connected_to_me = []
	model = &lt;Model instance&gt;
	canvas = &lt;Canvas instance&gt;

OBJETO MODEL (Pet) :
	Name = 'Pet'
	Superclass = ''
	Variables = ['name']
	Methods = ['goto']
</pre>

<hr>

	<h1>Caso 2 : dos cajas</h1>
	<img src='./two.png'/>
<pre>
OBJETO CANVAS :
	boxes = [&lt;Box instance&gt;,
		&lt;Box instance&gt;]

OBJETO BOX (Pet) :
	lines_connected_to_me = [&lt;line instance&gt;]
	model = &lt;Model instance&gt;
	canvas = &lt;Canvas instance&gt;

OBJETO MODEL (Pet) :
	Name = 'Pet'
	Superclass = ''
	Variables = ['name']
	Methods = ['goto']

OBJETO BOX (Cat) :
	lines_connected_to_me = [&lt;line instance&gt;]
	model = &lt;Model instance&gt;
	canvas = &lt;Canvas instance&gt;

OBJETO MODEL (Cat) :
	Name = 'Cat'
	Superclass = 'Pet'
	Variables = ['Owner']
	Methods = []

OBJETO LINE :
	father = &lt;Box instance&gt; (es Pet)
	child = &lt;Box instance&gt; (es Cat)
</pre>

<hr>

	<h1>Caso 3 : tres cajas</h1>
	<img src='./three.png'/>
<pre>
OBJETO CANVAS :
	boxes = [&lt;Box instance&gt;,
		&lt;Box instance&gt;,
		&lt;Box instance&gt;]

OBJETO BOX (Pet) :
	lines_connected_to_me = [&lt;line instance&gt;, &lt;line instance&gt;]
	model = &lt;Model instance&gt;
	canvas = &lt;Canvas instance&gt;

OBJETO MODEL (Pet) :
	Name = 'Pet'
	Superclass = ''
	Variables = ['name']
	Methods = ['goto']

OBJETO BOX (Cat) :
	lines_connected_to_me = [&lt;line instance&gt;]
	model = &lt;Model instance&gt;
	canvas = &lt;Canvas instance&gt;

OBJETO MODEL (Cat) :
	Name = 'Cat'
	Superclass = 'Pet'
	Variables = ['Owner']
	Methods = []

OBJETO BOX (Dog) :
	lines_connected_to_me = [&lt;line instance&gt;]
	model = &lt;Model instance&gt;
	canvas = &lt;Canvas instance&gt;

OBJETO MODEL (Dog) :
	Name = 'Dog'
	Superclass = 'Pet'
	Variables = ['']
	Methods = []

OBJETO LINE :
	father = &lt;Box instance&gt; (es Pet)
	child = &lt;Box instance&gt; (es Cat)

OBJETO LINE :
	father = &lt;Box instance&gt; (es Pet)
	child = &lt;Box instance&gt; (es Dog)
</pre>

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